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本文考虑刚性水锤与弹性水锤两种情况,分别建立了水轮发电机组并入大电网运行时的功率调节动态数学模型,同时根据l~∞范数性能指标,考虑水压引起的最大功率反调约束,设计了功率预测控制器。仿真结果表明功率预测控制系统有效地抑制了非最小相位水击效应带来的功率反调作用,其功率调节动态特性优良,为功率的计算机优化控制提供了一种行之有效的方法。
Considering rigid water hammer and elastic water hammer, the dynamic mathematical model of power regulation when turbine generator unit is incorporated into large power grid is established. At the same time, the maximum power caused by water pressure is considered according to the l ~ ∞ norm performance index Anti-tuning constraints, the design of the power prediction controller. The simulation results show that the power predictive control system can effectively restrain the power inverse effect caused by the non-minimum phase water hammer effect, and the power regulation dynamic characteristics are excellent, which provides an effective method for power computer optimization control.